Adds the bigip_provision module to Ansible (#25558)

This module allows an administrator to provision new module functionality
on a BIG-IP. BIG-IP modules provide enhanced ADC and security features that
are commonly used by customers such as GTM, ASM, and AFM.

Unit tests are provided. Integration tests can be found here

https://github.com/F5Networks/f5-ansible/blob/devel/test/integration/bigip_provision.yaml#L23
https://github.com/F5Networks/f5-ansible/tree/devel/test/integration/targets/bigip_provision/tasks
This commit is contained in:
Tim Rupp 2017-06-14 10:28:12 -07:00 committed by John R Barker
parent 1c9a570ffe
commit 0c68e200d5
2 changed files with 493 additions and 0 deletions

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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright 2017 F5 Networks Inc.
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
ANSIBLE_METADATA = {
'status': ['preview'],
'supported_by': 'community',
'metadata_version': '1.0'
}
DOCUMENTATION = '''
---
module: bigip_provision
short_description: Manage BIG-IP module provisioning.
description:
- Manage BIG-IP module provisioning. This module will only provision at the
standard levels of Dedicated, Nominal, and Minimum.
version_added: "2.4"
options:
module:
description:
- The module to provision in BIG-IP.
required: true
choices:
- am
- afm
- apm
- asm
- avr
- fps
- gtm
- ilx
- lc
- ltm
- pem
- sam
- swg
level:
description:
- Sets the provisioning level for the requested modules. Changing the
level for one module may require modifying the level of another module.
For example, changing one module to C(dedicated) requires setting all
others to C(none). Setting the level of a module to C(none) means that
the module is not run.
default: nominal
choices:
- dedicated
- nominal
- minimum
state:
description:
- The state of the provisioned module on the system. When C(present),
guarantees that the specified module is provisioned at the requested
level provided that there are sufficient resources on the device (such
as physical RAM) to support the provisioned module. When C(absent),
de-provision the module.
default: present
choices:
- present
- absent
notes:
- Requires the f5-sdk Python package on the host. This is as easy as pip
install f5-sdk.
requirements:
- f5-sdk >= 2.2.3
extends_documentation_fragment: f5
author:
- Tim Rupp (@caphrim007)
'''
EXAMPLES = '''
- name: Provision PEM at "nominal" level
bigip_provision:
server: "lb.mydomain.com"
module: "pem"
level: "nominal"
password: "secret"
user: "admin"
validate_certs: "no"
delegate_to: localhost
- name: Provision a dedicated SWG. This will unprovision every other module
bigip_provision:
server: "lb.mydomain.com"
module: "swg"
password: "secret"
level: "dedicated"
user: "admin"
validate_certs: "no"
delegate_to: localhost
'''
RETURN = '''
level:
description: The new provisioning level of the module.
returned: changed
type: string
sample: "minimum"
'''
import time
from ansible.module_utils.f5_utils import (
AnsibleF5Client,
AnsibleF5Parameters,
HAS_F5SDK,
F5ModuleError,
iControlUnexpectedHTTPError
)
class Parameters(AnsibleF5Parameters):
api_attributes = ['level']
returnables = ['level']
updatables = ['level']
def to_return(self):
result = {}
try:
for returnable in self.returnables:
result[returnable] = getattr(self, returnable)
result = self._filter_params(result)
return result
except Exception:
return result
def api_params(self):
result = {}
for api_attribute in self.api_attributes:
if self.api_map is not None and api_attribute in self.api_map:
result[api_attribute] = getattr(self, self.api_map[api_attribute])
else:
result[api_attribute] = getattr(self, api_attribute)
result = self._filter_params(result)
return result
@property
def level(self):
if self._values['level'] is None:
return None
return str(self._values['level'])
class ModuleManager(object):
def __init__(self, client):
self.client = client
self.have = None
self.want = Parameters(self.client.module.params)
self.changes = Parameters()
def _update_changed_options(self):
changed = {}
for key in Parameters.updatables:
if getattr(self.want, key) is not None:
attr1 = getattr(self.want, key)
attr2 = getattr(self.have, key)
if attr1 != attr2:
changed[key] = attr1
if changed:
self.changes = Parameters(changed)
return True
return False
def exec_module(self):
if not HAS_F5SDK:
raise F5ModuleError("The python f5-sdk module is required")
changed = False
result = dict()
state = self.want.state
try:
if state == "present":
changed = self.update()
elif state == "absent":
changed = self.absent()
except iControlUnexpectedHTTPError as e:
raise F5ModuleError(str(e))
changes = self.changes.to_return()
result.update(**changes)
result.update(dict(changed=changed))
return result
def exists(self):
provision = self.client.api.tm.sys.provision
resource = getattr(provision, self.want.module)
resource = resource.load()
result = resource.attrs
if str(result['level']) == 'none':
return False
return True
def update(self):
self.have = self.read_current_from_device()
if not self.should_update():
return False
if self.client.check_mode:
return True
self.update_on_device()
self.wait_for_module_provisioning()
return True
def should_update(self):
result = self._update_changed_options()
if result:
return True
return False
def update_on_device(self):
params = self.want.api_params()
provision = self.client.api.tm.sys.provision
resource = getattr(provision, self.want.module)
resource = resource.load()
resource.update(**params)
def read_current_from_device(self):
provision = self.client.api.tm.sys.provision
resource = getattr(provision, str(self.want.module))
resource = resource.load()
result = resource.attrs
return Parameters(result)
def absent(self):
if self.exists():
return self.remove()
return False
def remove(self):
if self.client.check_mode:
return True
self.remove_from_device()
self.wait_for_module_provisioning()
if self.exists():
raise F5ModuleError("Failed to de-provision the module")
return True
def remove_from_device(self):
provision = self.client.api.tm.sys.provision
resource = getattr(provision, self.want.module)
resource = resource.load()
resource.update(level='none')
def wait_for_module_provisioning(self):
# To prevent things from running forever, the hack is to check
# for mprov's status twice. If mprov is finished, then in most
# cases (not ASM) the provisioning is probably ready.
nops = 0
# Sleep a little to let provisioning settle and begin properly
time.sleep(5)
while nops < 4:
try:
if not self._is_mprov_running_on_device():
nops += 1
else:
nops = 0
except Exception:
# This can be caused by restjavad restarting.
pass
time.sleep(10)
def _is_mprov_running_on_device(self):
output = self.client.api.tm.util.bash.exec_cmd(
'run',
utilCmdArgs='-c "ps aux | grep \'[m]prov\'"'
)
if hasattr(output, 'commandResult'):
return True
return False
class ArgumentSpec(object):
def __init__(self):
self.supports_check_mode = True
self.argument_spec = dict(
module=dict(
required=True,
choices=[
'afm', 'am', 'sam', 'asm', 'avr', 'fps',
'gtm', 'lc', 'ltm', 'pem', 'swg', 'ilx',
'apm'
]
),
level=dict(
default='nominal',
choices=['nominal', 'dedicated', 'minimal']
),
state=dict(
default='present',
choices=['present', 'absent']
)
)
self.mutually_exclusive = [
['parameters', 'parameters_src']
]
self.f5_product_name = 'bigip'
def main():
if not HAS_F5SDK:
raise F5ModuleError("The python f5-sdk module is required")
spec = ArgumentSpec()
client = AnsibleF5Client(
argument_spec=spec.argument_spec,
mutually_exclusive=spec.mutually_exclusive,
supports_check_mode=spec.supports_check_mode,
f5_product_name=spec.f5_product_name
)
try:
mm = ModuleManager(client)
results = mm.exec_module()
client.module.exit_json(**results)
except F5ModuleError as e:
client.module.fail_json(msg=str(e))
if __name__ == '__main__':
main()

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# -*- coding: utf-8 -*-
#
# Copyright 2017 F5 Networks Inc.
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import sys
if sys.version_info < (2, 7):
from nose.plugins.skip import SkipTest
raise SkipTest("F5 Ansible modules require Python >= 2.7")
import os
import json
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import patch, Mock
from ansible.module_utils import basic
from ansible.module_utils._text import to_bytes
from ansible.module_utils.f5_utils import AnsibleF5Client
try:
from library.bigip_provision import Parameters
from library.bigip_provision import ModuleManager
from library.bigip_provision import ArgumentSpec
except ImportError:
from ansible.modules.network.f5.bigip_provision import Parameters
from ansible.modules.network.f5.bigip_provision import ModuleManager
from ansible.modules.network.f5.bigip_provision import ArgumentSpec
fixture_path = os.path.join(os.path.dirname(__file__), 'fixtures')
fixture_data = {}
def set_module_args(args):
args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
basic._ANSIBLE_ARGS = to_bytes(args)
def load_fixture(name):
path = os.path.join(fixture_path, name)
if path in fixture_data:
return fixture_data[path]
with open(path) as f:
data = f.read()
try:
data = json.loads(data)
except Exception:
pass
fixture_data[path] = data
return data
class TestParameters(unittest.TestCase):
def test_module_parameters(self):
args = dict(
module='gtm',
password='password',
server='localhost',
user='admin'
)
p = Parameters(args)
assert p.module == 'gtm'
@patch('ansible.module_utils.f5_utils.AnsibleF5Client._get_mgmt_root',
return_value=True)
class TestManager(unittest.TestCase):
def setUp(self):
self.spec = ArgumentSpec()
def test_provision_one_module_default_level(self, *args):
# Configure the arguments that would be sent to the Ansible module
set_module_args(dict(
module='gtm',
password='passsword',
server='localhost',
user='admin'
))
# Configure the parameters that would be returned by querying the
# remote device
current = Parameters(
dict(
module='gtm',
level='none'
)
)
client = AnsibleF5Client(
argument_spec=self.spec.argument_spec,
supports_check_mode=self.spec.supports_check_mode,
f5_product_name=self.spec.f5_product_name
)
mm = ModuleManager(client)
# Override methods to force specific logic in the module to happen
mm.update_on_device = Mock(return_value=True)
mm.read_current_from_device = Mock(return_value=current)
# this forced sleeping can cause these tests to take 15
# or more seconds to run. This is deliberate.
mm._is_mprov_running_on_device = Mock(side_effect=[True, False, False, False, False])
results = mm.exec_module()
assert results['changed'] is True
assert results['level'] == 'nominal'
def test_provision_all_modules(self, *args):
modules = [
'afm', 'am', 'sam', 'asm', 'avr', 'fps',
'gtm', 'lc', 'ltm', 'pem', 'swg', 'ilx',
'apm',
]
for module in modules:
# Configure the arguments that would be sent to the Ansible module
set_module_args(dict(
module=module,
password='passsword',
server='localhost',
user='admin'
))
with patch('ansible.module_utils.basic.AnsibleModule.fail_json') as mo:
AnsibleF5Client(
argument_spec=self.spec.argument_spec,
supports_check_mode=self.spec.supports_check_mode,
f5_product_name=self.spec.f5_product_name
)
mo.assert_not_called()